Cling films having a microreplicated topography and methods of making and using same
Assignee3M Innovative Properties Company
InventorsFrank T. Sher, Francis V. Loncar, Jr.
Life of this patent
Estimating the term…
Abstract
Films having a microreplicated topography are prepared from contacting a microembossed pattern to a layer of film. When an adhesion interface is established between the layer of film and a supporting substrate, the topography of the film surface controls the performance of the adhesion interface. Articles having microreplicated film surfaces are also disclosed that have an advantage of providing microchannels for fluid egress for an effective period of time. Multiple microembossed patterns produce microreplicated film surfaces having both microchannels for fluid egress and pegs for improved film properties.
Claims10
An article comprising a layer of cling film having a topography having an effective three-dimensional pattern that generates a depth less than the thickness of the continuous film on a mounting surface of the cling film, said article being capable of, at the time of application to a smooth surface, clinging by application of static interaction to that smooth surface without the application of an adhesive between the article and the smooth surface, wherein said topography provides channels that allow egress of air or other fluid when the cling film is contacted to the smooth surface.
Dependencies are inferred from the claim text.